WO2019017249A1

WO2019017249A1 - Floodlight

Info

Publication number: WO2019017249A1
Application number: PCT/JP2018/026091
Authority: WO
Inventors: 和則柘植; 孝二 ▲高▼橋; 耕介小宮
Original assignee: 株式会社マキタ
Priority date: 2017-07-18
Filing date: 2018-07-10
Publication date: 2019-01-24
Also published as: DE112018003162T5; JPWO2019017249A1; CN110914589A; JP6979456B2; US20210140620A1; US11153951B2; CN110914589B

Abstract

This floodlight comprises: a light source; a holding member that holds the light source; and a fan that cools the light source by generating an air flow on the surface of the holding member. The light source is held on the front surface of the holding member, and projects light forward relative to the holding member. At the back of the holding member, the fan is disposed at a position facing the holding member.

Description

Floodlight

The present invention relates to a light projector.

In a work site, such as a construction site, a light projector as disclosed in Patent Document 1 is used.

JP 2014-212025 A

The projector is provided with an operating device operated to adjust the light emission state of the light emitting unit. When the control device is disposed at the upper part of the light projector, when the light projector is installed at a high place, it is difficult for the control device to be reached and smooth operation becomes difficult.

Also, the light projector has a light source for emitting light. Since the light source generates heat, a technique capable of suppressing an excessive temperature rise of the light source is required.

The aspect of this invention aims at providing the light projector which can perform operation for adjustment of a light emission state smoothly. Moreover, the aspect of this invention aims at providing the light projector which can suppress the excessive temperature rise of a light source.

According to the first aspect of the present invention, a main body member having a light emitting portion, an arm connected to a connecting mechanism provided on a side surface of the main body member and rotatable around a rotation shaft, and arranged in the connecting mechanism And an operating device operated to adjust the light emitting state of the light emitting unit.

According to a second aspect of the present invention, the light source comprises: a light source; a support member for supporting the light source; and a fan for generating an air flow on the surface of the support member to cool the light source; A projector is provided which is supported on the front surface of a support member and emits light in front of the support member, and the fan is disposed at a position behind the support member opposite to the support member.

According to an aspect of the present invention, there is provided a light projector capable of smoothly performing an operation for adjusting a light emission state. Moreover, according to the aspect of this invention, the projector which can suppress the excessive temperature rise of a light source is provided.

FIG. 1 is a perspective view showing a light projector according to the first embodiment. FIG. 2 is a plan view showing the light projector according to the first embodiment. FIG. 3 is a cross-sectional view showing the operating device according to the first embodiment. FIG. 4 is a perspective view showing a second connection mechanism according to the first embodiment. FIG. 5 is a perspective view showing the heat dissipation member according to the first embodiment. FIG. 6 is a perspective view of the projector according to the first embodiment as viewed from the rear. FIG. 7 is a perspective view of the light projector according to the first embodiment as viewed from the rear. FIG. 8 is a perspective view of the projector according to the first embodiment as viewed from the rear. FIG. 9 is a cross-sectional view showing the light projector according to the first embodiment. FIG. 10 is a functional block diagram showing a control device according to the first embodiment. FIG. 11 is a view showing a use mode of the light projector according to the first embodiment. FIG. 12 is a perspective view showing a light projector according to a second embodiment. FIG. 13 is a view showing a use mode of the light projector according to the second embodiment. FIG. 14 is a perspective view showing a light projector according to a third embodiment. FIG. 15 is a view showing a use mode of the light projector according to the third embodiment. FIG. 16 is a perspective view showing a projector according to the fourth embodiment. FIG. 17 is a plan view showing a light projector according to a fourth embodiment. FIG. 18 is a perspective view showing a second connection mechanism according to the fourth embodiment. FIG. 19 is a perspective view showing the heat dissipation member according to the fourth embodiment. FIG. 20 is a perspective view of the projector according to the fourth embodiment as viewed from the rear. FIG. 21 is a perspective view of the projector according to the fourth embodiment as viewed from the rear. FIG. 22 is a perspective view of the projector according to the fourth embodiment as viewed from the rear. FIG. 23 is a cross-sectional view showing a projector according to the fourth embodiment. FIG. 24 is a cross-sectional view showing a light projector according to a fourth embodiment. FIG. 25 is a perspective view showing a light projector according to a fourth embodiment. FIG. 26 is a functional block diagram showing a control device according to the fourth embodiment. FIG. 27 is a view showing the operation of the fan according to the fourth embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited to the embodiments. The components of the embodiments described below can be combined as appropriate. In addition, some components may not be used.

First Embodiment
FIG. 1 is a perspective view showing an example of a light projector 100A according to the present embodiment. FIG. 2 is a plan view showing an example of the light projector 100A according to the present embodiment. The projector 100A is used at a work site such as a construction site. The projector 100A emits light based on the supplied power.

As shown in FIGS. 1 and 2, the light projector 100A includes a main body member 10 having a light emitting portion 12 including a light source 17, a handle 13 connected to the main body member 10, and a connection mechanism provided on the side surface of the main body member 10. The control unit 60 is provided with an arm 20 connected to 30 and rotatable around a rotation axis AX, an operating device HD disposed in the connection mechanism 30 and operated to adjust the light emission state of the light emitting unit 12, and a control device 60. The light emission state of the light emitting unit 12 is a concept including the light emission state of the light source 17.

In the following description, the positional relationship of each part will be described using the terms “front”, “rear”, “upper”, “lower”, “left”, and “right”. The light emitting unit 12 is disposed in front of the center of the main body member 10. The handle 13 is disposed above the center of the body member 10. The upper opposite direction is the lower and the forward opposite direction is the rear. Moreover, the direction orthogonal to the front and upper side is a side. One side is left and the other side is right.

<Body member>
The main body member 10 includes a housing 11, a light emitting unit 12 supported by the housing 11, and a heat radiating member 19 supporting the light emitting unit 12. The heat dissipation member 19 is supported by the housing 11. The housing 11 has a front cover 14, a back cover 15, and a battery cover 16. The front cover 14 is disposed in front of the back cover 15. The front cover 14 is disposed around the light emitting unit 12. The front cover 14 accommodates the light emitting unit 12 and the heat radiating member 19. The front cover 14 is formed of, for example, an elastomer. The front cover 14 has a lens 14L. The lens 14 L is disposed in front of the light emitting unit 12. The lens 14L is formed using a material capable of transmitting light. The front cover 14 has a plurality of side surfaces disposed around the light emitting unit 12 and the heat dissipation member 19. The side surface of the front cover 14 includes an upper surface 14 a, a lower surface 14 b, a right surface 14 c, and a left surface 14 d of the front cover 14. An opening 14K is provided on at least two side surfaces of the upper surface 14a, the lower surface 14b, the right surface 14c, and the left surface 14d of the front cover 14. In the present embodiment, an opening 14K is provided in each of the upper surface 14a, the lower surface 14b, the right surface 14c, and the left surface 14d of the front cover 14. The opening 14K functions as a vent connecting the inner space of the front cover 14 and the outer space. At least a portion of the heat dissipation member 19 is exposed from the opening 14K. The heat of the light emitting unit 12 and the heat radiating member 19 is released to the outside of the housing 11 through the opening 14K. Even when the output of the light emitting unit 12 is high, the heat generated by the light emitting unit 12 is efficiently released to the outside through the opening 14K. Even when foreign matter intrudes into the internal space of the front cover 14 from the opening 14K provided on any one side of the upper surface 14a, the lower surface 14b, the right surface 14c, and the left surface 14d, the foreign matter is provided on the other side. It is discharged to the space outside the front cover 14 from the opening 14K. Foreign matter is a concept that includes one or both of a solid such as dust and a liquid such as water.

The back cover 15 is disposed behind the front cover 14. The back cover 15 has a step 15a that protrudes upward. The upper surface of the step 15a and the upper surface of the front cover 14 are disposed at substantially the same position in the vertical direction. The back cover 15 has a first wall 15S. The first wall 15S is provided on the front of the back cover 15. The back cover 15 is fixed to the front cover 14 at the first wall 15S.

The battery cover 16 is disposed behind the back cover 15. The battery cover 16 is connected to the lower portion of the back cover 15 via a hinge mechanism. The battery cover 16 is rotatably supported by the back cover 15. The battery cover 16 may be attached to and detached from the back cover 15. The battery cover 16 has a latch 16 a that protrudes to the back cover 15 side. The latch 16a is disposed on the upper surface of the step 15a.

The light emitting unit 12 includes a plurality of light sources 17 and a control substrate 18 supporting the plurality of light sources 17. For example, an LED (Light Emitting Diode) is used as the light source 17. A plurality of light sources 17 are arranged in the vertical direction and the left and right direction on the front surface of the control board 18. The plurality of light sources 17 may emit the same color light or may emit different color lights. The control board 18 has a drive circuit for driving the light source 17 and a wire connected to the drive circuit. The control board 18 controls the light emission state of the light emitting unit 12 based on the control signal from the control device 60. The heat dissipating member 19 contacts the control board 18. The control board 18 is fixed to the heat dissipation member 19. As described above, the heat dissipation member 19 is supported by the housing 11. The control substrate 18 supporting the plurality of light sources 17 is supported by the housing 11 via the heat dissipation member 19.

The heat dissipating member 19 is a heat sink that emits the heat generated from the light source 17. The heat dissipating member 19 is formed of a material having a thermal conductivity higher than that of the control substrate 18. The heat dissipation member 19 is formed of, for example, a metal material such as aluminum. The heat dissipation member 19 may be made of, for example, a material containing carbon or the like.

<Handle>
The handle 13 is attached to the body member 10. The handle 13 has a pair of base portions 13a connected to the back cover 15 via the shaft portion 13b, and a grip portion 13c connecting the pair of base portions 13a. The base 13a is attached to each of the right side surface and the left side surface of the step 15a via the shaft 13b. The rotation axis of the shaft portion 13 b is parallel to the rotation axis AX. The rotation axis AX extends in the left-right direction. The base portion 13a is rotatable around the shaft portion 13b. The base 13a extends linearly from the step 15a. The gripping portion 13c is gripped by a worker. The worker can carry the projector 100A by holding the grip 13c.

The handle 13 is movable between the accommodation position P1 and the standing position P2 (see FIG. 6 and the like) by pivoting the base 13a about the shaft portion 13b.

In the state where the handle 13 is disposed at the accommodation position P1, the handle 13 is disposed on the left, the right, and the rear of the step 15a. The shape of the handle 13 so that the base 13a and the grip 13c do not protrude from the back cover 15 and the upper surface of the handle 13 does not protrude upward from the front cover 14 in the state where the handle 13 is disposed at the accommodation position P1. And the dimensions are determined.

The handle 13 is disposed on the top of the battery cover 16 in a state where the handle 13 is disposed at the accommodation position P1. By disposing the handle 13 on the upper portion of the battery cover 16, the rearward movement (opening direction) of the battery cover 16 is restricted. Since the handle 13 is disposed at the storage position P1, the battery cover 16 is suppressed from being opened unexpectedly.

In the state where the handle 13 is disposed at the standing position P2, the operator can grip the handle 13 smoothly.

<Arm>
The arm 20 is connected to a connection mechanism 30 provided on the side surface of the main body member 10, and is rotatable about the rotation axis AX. The arm 20 has a first base 21, a second base 22, and an annular portion 23. The first base 21, the second base 22, and the annular portion 23 are integrated. The connection mechanism 30 includes a first connection mechanism 31 provided on the first side surface 15R of the main body member 10 and a second connection mechanism 32 provided on the second side surface 15L of the main body member 10. The first side surface 15R is the right side surface of the back cover 15, and the second side surface 15L is the left side surface of the back cover 15.

The first base 21 is connected to the first side surface 15R of the back cover 15 via the first connection mechanism 31. The first base 21 is straight and extends forward and downward from the first connection mechanism 31 along the first side surface 15R. The first base 21 is connected to the annular portion 23 via the curved portion 24. The second base 22 is connected to the second side surface 15 L of the back cover 15 via the second connection mechanism 32. The second base 22 is straight and extends forward and downward from the second coupling mechanism 32 along the second side surface 15L. The dimensions of the first base 21 and the dimensions of the second base 22 are equal. The second base 22 is connected to the annular portion 23 via the curved portion 25.

The annular portion 23 includes a first node portion 23a disposed along the first side surface 15R, a second node portion 23b disposed along the second side surface 15L, and a third portion disposed parallel to the rotation axis AX. And a joint portion 23c. The first joint portion 23 a is connected to the bending portion 24. The second node portion 23 b is connected to the bending portion 25. The right end portion of the third joint portion 23 c is connected to the first joint portion 23 a via the bending portion 26. The left end of the third joint portion 23c is connected to the second joint portion 23b via the bending portion 27.

The first connection mechanism 31 is provided on the first side surface 15R. The second connection mechanism 32 is provided on the second side surface 15L. The second connection mechanism 32 has a fixing mechanism 35 for fixing the arm 20 to the main body member 10. The fixing mechanism 35 includes a cam 32 c that restricts the rotation of the arm 20.

<First Coupling Mechanism and Operating Device>
FIG. 3 is a cross-sectional view showing the operating device HD according to the present embodiment, and corresponds to a cross-sectional view taken along the line AA of FIG. The operating device HD is disposed in the connection mechanism 30 and operated to adjust the light emitting state of the light emitting unit 12 (light source 17). The operating device HD has a switch mechanism 40 and a dial mechanism 50.

As shown in FIG. 3, the controller device HD is disposed in the first connection mechanism 31. The operating device HD is provided independently of the first base 21. The first connection mechanism 31 has a flange portion 31a and a cylindrical portion 31b. The flange portion 31a is fixed to the first side surface 15R. The cylindrical portion 31 b protrudes to the right from the flange portion 31 a. The central axis of the cylindrical portion 31 b coincides with the rotation axis AX. The first base 21 is supported by the cylindrical portion 31 b so as to be rotatable about the rotation axis AX.

At least a portion of the switch mechanism 40 is disposed on the rotation axis AX of the first connection mechanism 31. At least a portion of the dial mechanism 50 is disposed around the switch mechanism 40. The switch mechanism 40 has a switch 41, a moving member 42, and a displacement sensor 43. The dial mechanism 50 has a dial 51, a rotation member 52, and a rotation sensor 53.

The switch 41 is at least partially disposed on the rotation axis AX and is displaceable in a direction parallel to the rotation axis AX. The right end of the switch 41 protrudes from the dial 51 to the right. The dial 51 is disposed around the switch 41. The switch 41 is laterally displaceable inside the dial 51. The operator can operate the switch 41. The operator can press the right end of the switch 41 to displace the switch 41. The switch 41 is independent of the first base 21 and the first connection mechanism 31. Therefore, even if the switch 41 is operated, the first base 21 and the first connection mechanism 31 do not move.

In addition, in order to maintain a state in which the right end portion of the switch 41 protrudes to the outside of the dial 51, an elastic member such as a spring may be connected to the switch 41.

The moving member 42 is coupled to the switch 41. The moving member 42 is cylindrical. The central axis of the moving member 42 coincides with the rotation axis AX. The moving member 42 is inserted into an insertion hole 15 c provided in the back cover 15. When the switch 41 is displaced in the left and right direction, the moving member 42 is displaced in the left and right direction together with the switch 41.

The displacement sensor 43 detects the amount of displacement of the switch 41. The displacement sensor 43 is disposed to be in contact with the left end of the moving member 42. The displacement sensor 43 outputs an electrical signal based on the amount of displacement of the moving member 42. The displacement sensor 43 may be a contact sensor such as a piezoelectric sensor, or a non-contact sensor such as an optical sensor or a magnetic sensor.

The dial 51 is disposed around the switch 41 and is rotatable about the rotation axis AX. The dial 51 is cylindrical. The central axis of the dial 51 coincides with the rotation axis AX. The dial 51 is a multi-turn dial that can freely rotate without the presence of a rotatable range. The dial 51 may be a dial whose rotatable range is defined. The worker can operate the dial 51. The operator can pinch and rotate the dial 51. The dial 51 is independent of the first base 21 and the first connecting mechanism 31. Therefore, even if the dial 51 is operated, the first base 21 and the first connection mechanism 31 do not rotate.

The rotating member 52 is coupled to the dial 51. The rotating member 52 is cylindrical. The central axis of the rotating member 52 coincides with the rotation axis AX. The rotation member 52 is inserted into an insertion hole 15 c provided in the back cover 15. The inner diameter of the rotating member 52 is larger than the outer diameter of the moving member 42. The moving member 42 is disposed inside the rotating member 52. The rotating member 52 is supported by the inner peripheral surface of the insertion hole 15c via the bearing 15d.

The rotation sensor 53 detects the amount of rotation of the dial 51. The rotation sensor 53 outputs an electrical signal based on the amount of rotation of the rotating member 52. The rotation sensor 53 may be a non-contact sensor such as an optical sensor or a magnetic sensor.

A double annular wall portion 15e is provided on the inner peripheral surface of the insertion hole 15c. A sealing member 15f such as an O-ring is held by the wall 15e. The sealing member 15 f suppresses the entry of foreign matter from the outside into the insertion hole 15 c in which the displacement sensor 43 and the rotation sensor 53 are disposed.

<Second connection mechanism>
FIG. 4 is a perspective view showing a second connection mechanism 32 according to the present embodiment. As shown in FIG. 4, the second base 22 includes a cylindrical portion 22 a, a rod-like portion 22 b, and a cam 22 c. The cylindrical portion 22 a is coupled to the second coupling mechanism 32. The rod-like portion 22 b is connected to the cylindrical portion 22 a and connected to the annular portion 23. The cam 22 c regulates the rotation of the arm 20. The cam 22c is provided on the right end face 22d of the cylindrical portion 22a. FIG. 4 also shows a view of the cylindrical portion 22a as viewed from the end face 22d side. The cam 22c has a plurality of protrusions disposed in the circumferential direction of the cylindrical portion 22a.

The second connection mechanism 32 has a fixing mechanism 35 for fixing the arm 20 to the main body member 10. The fixing mechanism 35 includes a flange portion 32a, a cylindrical portion 32b, a cam 32c, a screw portion 32d, and a fixing member 32e. The flange portion 32a is fixed to the second side surface 15L. The cylindrical portion 32b protrudes leftward from the flange portion 32a. The central axis of the cylindrical portion 32b coincides with the rotation axis AX.

The cam 32 c regulates the rotation of the arm 20. The cam 32c is provided on the tip surface 32f of the cylindrical portion 32b. The cam 32c has a plurality of protrusions disposed in the circumferential direction of the cylindrical portion 32b.

The screw portion 32d protrudes leftward from the tip end surface 32f of the cylindrical portion 32b. A screw thread is formed at the left end of the screw portion 32d. The screw portion 32 d is inserted into the through hole 22 e provided in the cylindrical portion 22 a of the second base 22.

The fixing member 32e has a screw hole 32g in which a screw groove is formed. The screw groove of the screw hole 32g is combined with the screw thread of the screw portion 32d. The fixing member 32e is coupled to the screw portion 32d from the left side of the cylindrical portion 22a. The left end portion of the screw portion 32d is inserted into the screw hole 32g of the fixing member 32e, and the fixing member 32e is rotated in one direction of rotation about the rotation axis AX, thereby forming the cylindrical portion 22a and the cylindrical portion 32b. It is fixed. Further, the fixation between the cylindrical portion 22a and the cylindrical portion 32b is released by rotating the fixing member 32e in the other direction of the rotation direction about the rotation axis AX.

In a state where the cylindrical portion 22a and the cylindrical portion 32b are fixed, the cam 22c of the second base 22 and the cam 32c of the second connection mechanism 32 are coupled. Thus, the rotation of the cylindrical portion 22a about the rotation axis AX is restricted.

In a state where the fixation between the cylindrical portion 22a and the cylindrical portion 32b is released, the coupling between the cam 22c of the second base 22 and the cam 32c of the second connection mechanism 32 is released. Thus, the cylindrical portion 22a can rotate around the rotation axis AX. Further, by releasing the connection between the cam 22c and the cam 32c, it is possible to adjust the position of the arm 20 in the rotation direction about the rotation axis AX.

The annular portion 23 connects the first base 21 and the second base 22. The annular portion 23 curves forward from the first base 21 and the second base 22. The annular portion 23 includes a wire winding portion 23 d around which a wire connecting the main body member 10 and the AC power supply is wound, and a connection portion 23 e connected to a tripod or a vise.

<Heat dissipation member>
FIG. 5 is a perspective view showing the heat dissipating member 19 according to the present embodiment. FIG. 5 shows the heat dissipation member 19 housed in the front cover 14 as viewed from the rear. As shown in FIG. 5, the heat dissipation member 19 has a support plate 19a, fins 19b and fins 19c, a fixing member insertion portion 19d, and an insertion portion 19e. The support plate 19 a supports the control board 18. The control substrate 18 contacts the support plate 19a. The fins 19 b and the fins 19 c are supported by the rear surface of the support plate 19 a and project rearward from the support plate 19 a. The fins 19 b are in the form of a plate extending in the vertical direction, and a plurality of fins 19 b are provided at intervals in the left-right direction. The fins 19 c are in the form of a plate extending in the left-right direction, and a plurality of fins 19 c are provided at intervals in the up-down direction. A fixing member for fixing the heat dissipation member 19 is inserted into the fixing member insertion portion 19d. Further, a wire connected to the control substrate 18 is disposed in the insertion portion 19e.

<Battery mounting part>
Each of Drawing 6 and Drawing 7 is a perspective view showing the state where it saw the light projector 100A concerning this embodiment from the back, and shows the state where the battery cover 16 was rotated to the back (opening direction). The main body member 10 has a battery mounting portion 70 to which the power tool battery 80 is mounted. The power tool battery 80 is a rechargeable battery. The battery mounting portion 70 is covered by a battery cover 16. When mounting the power tool battery 80 on the battery mounting portion 70 or removing the power tool battery 80 from the battery mounting portion 70, the battery cover 16 is pivoted rearward. FIG. 6 shows a state in which the power tool battery 80 is removed from the battery mounting portion 70. FIG. 7 shows a state in which the power tool battery 80 is mounted to the battery mounting portion 70. As shown in FIG.

When the battery cover 16 is rotated backward, the handle 13 is lifted so that the handle 13 is located at the standing position P2. As a result, the battery cover 16 becomes rotatable. After the handle 13 is disposed at the upright position P2, the battery cover 16 is rotated such that the upper portion of the battery cover 16 moves rearward by releasing the latch 16a. By rotating the battery cover 16 backward, as shown in FIG. 6, the battery mounting portion 70 is exposed. Further, the battery mounting portion 70 is covered with the battery cover 16 by the battery cover 16 being pivoted forward (in the closing direction) and the latch 16 a being disposed on the step portion 15 a.

The battery mounting unit 70 is disposed behind the light emitting unit 12 and can mount at least two power tool batteries 80. The back cover 15 has a second wall 15T. The second wall 15T is provided at the rear of the back cover 15. The battery mounting unit 70 is disposed on the second wall 15T. Two battery mounting portions 70 are provided in the left-right direction in the second wall portion 15T. The number of the battery mounting units 70 may be one or three or more. A plurality of battery mounting units 70 may be provided in the vertical direction.

The power tool battery 80 is mounted to the battery mounting portion 70. The battery mounting portion 70 has a guide portion 71 for guiding the power tool battery 80. The power tool battery 80 is mounted on the battery mounting portion 70 by sliding downward with respect to the battery mounting portion 70 while being guided by the guide portion 71. By mounting the power tool battery 80 on the battery mounting portion 70, the main body member 10 and the power tool battery 80 can be energized. Each of the light emitting unit 12, the switch mechanism 40, the dial mechanism 50, and the control device 60 is driven based on the power supplied from the power tool battery 80. A remaining amount signal indicating the remaining power of the power tool battery 80 is output to the control device 60.

<Power supply wiring>
FIG. 8 is a perspective view showing the light projector 100A according to this embodiment as viewed from the rear, and shows a state where the power supply wiring 15r is connected to the light projector 100A. As shown in FIG. 8, a connector connection portion 15 p is provided on the rear surface 15 B of the back cover 15. The connector connection portion 15p is connected to the connector 15t of the power supply wiring 15r. The connector connection portion 15p is covered by a connection portion cover 15g. The connector cover 15g is connected to the rear surface 15B via a hinge mechanism. FIG. 8 shows a state in which the connection cover 15g is open.

<Internal space>
FIG. 9 is a cross-sectional view showing the light projector 100A according to the present embodiment, and corresponds to a cross-sectional view taken along the line BB of FIG. As shown in FIG. 9, the housing 11 has an internal space in which the light emitting unit 12, the heat dissipation member 19, and the power tool battery 80 are accommodated. An internal space of the housing 11 is divided into a first space K1 in which the heat dissipation member 19 is accommodated and a second space K2 in which the power tool battery 80 is accommodated. The first space K1 is defined by the front cover 14 and the first wall 15S of the back cover 15. The front cover 14 is fixed to the first wall 15S by a screw member 15u. The second space K2 is defined by the second wall 15T of the back cover 15 and the battery cover 16. The battery cover 16 suppresses the entry of foreign matter into the second space K2.

<Control device>
FIG. 10 is a functional block diagram showing a control device 60 according to the present embodiment. The control device 60 includes a processing device including a central processing unit (CPU) and a storage device including a random access memory (RAM) or a read only memory (ROM). The controller 60 is disposed, for example, in the internal space of the back cover 15.

The control device 60 includes an input unit 61, a light emission state control unit 62, and a storage unit 63.

The input unit 61 acquires an input signal. The input signal acquired by the input unit 61 includes a detection signal of the displacement sensor 43, a detection signal of the rotation sensor 53, and a remaining amount signal of the power tool battery 80.

The light emission state control unit 62 outputs a control signal for controlling the light emission state of the light emitting unit 12 (light source 17) based on the operation amount of the operation device HD. The operation amount of the operation device HD includes the displacement amount of the switch 41 and the rotation amount of the dial 51. The light emission state control unit 62 controls the light emission state of the light emitting unit 12 based on the input signal input to the input unit 61. The light emission state control unit 62 includes a first light emission state control unit 64 and a second light emission state control unit 65.

The first light emission state control unit 64 outputs a control signal for controlling the light emission state of the light emitting unit 12 (light source 17) based on the operation amount of the displacement sensor 43. The control of the light emission state of the light emission unit 12 by the first light emission state control unit 64 is a control to switch the light emission unit 12 between a light on state, a blink state and a light off state, and a control to switch color light emitted from the light emission unit 12 At least one is included. The first light emission state control unit 64 performs at least one of control for switching the light emitting unit 12 between the lighting state, the blinking state and the light off state, and control for switching the color light emitted from the light emitting unit 12 as control of the light emission state. Run.

When the worker operates the switch 41 of the switch mechanism 40, the displacement sensor 43 detects the displacement amount of the switch 41. The displacement sensor 43 outputs a detection signal to the control device 60. The first light emission state control unit 64 controls the light emission state of the light emitting unit 12 based on the detection signal of the displacement sensor 43 input to the input unit 61.

Note that the first light emission state control unit 64 turns on, blinks, and turns off based on the time when the switch 41 is operated and the time from when the switch 41 is operated once to when the switch 41 is next operated. Or the color light to be emitted may be switched. For example, the first light emission state control unit 64 has different light emission states when the operator operates the switch 41 for a predetermined time or more (when the switch 41 is pressed for a long time) and when the operator operates the switch 41 for a predetermined time or less. The light emission state may be controlled.

In addition, when the light emitting unit 12 is in the lighting state, the first light emitting state control unit 64 changes the switch 41 into the extinguishing state when the switch 41 is operated for the predetermined time or more, and is operated for the predetermined time or less In this case, it may be changed to the blinking state or the lighting state may be maintained. In addition, when the light emitting unit 12 is in the extinguished state, the first light emission state control unit 64 changes the light emitting state to the lit state when the switch 41 is operated for the predetermined time or more, and is operated for the predetermined time or less In this case, it may be changed to a blinking state or may be kept off.

The first light emission state control unit 64 changes the light emission state to the second color light when the switch 41 is operated for a predetermined time or more when the light emission unit 12 is in the light state with the first color light. If it is operated for a predetermined time or less, the third color light may be changed to the lighting state or the first color light may be maintained in the lighting state.

In addition, the first light emission state control unit 64 may control the light emission state so that different light emission states are obtained when, for example, the second operation is performed within a predetermined time after the switch 41 is operated once. .

In addition, the first light emission state control unit 64 may control the light emission state of the light emitting unit 12 based on the detection signal of the rotation sensor 53. For example, when the rotation range of the dial 51 is limited, the first light emission state control unit 64 sets the light emission state of the light emission unit 12 when the rotation position of the dial 51 becomes the lower limit value or the upper limit value of the rotation range. It may be changed to the off state.

In addition, the first light emission state control unit 64 may control the light emission state of the light emitting unit 12 based on the remaining amount signal of the power tool battery 80. For example, when the light emitting unit 12 is in the lighting state, and the remaining signal of the power tool battery 80 falls below the remaining threshold, the first light emitting state control unit 64 causes the light emitting state of the light emitting unit 12 to blink. Alternatively, the color light emitted from the light emitting unit 12 may be changed.

The second light emission state control unit 65 outputs a control signal for controlling the light emission state of the light emitting unit 12 (light source 17) based on the detection signal of the rotation sensor 53. The control of the light emission state by the second light emission state control unit 65 includes the control of the illuminance when the light emitted from the light emitting unit 12 is irradiated to the predetermined illuminance reference plane F (see FIG. 2). The illuminance reference plane F is a virtual plane defined at a position separated by a predetermined distance in front of the light emitting unit 12. The illuminance has a larger value as the amount of light emitted from the light emitting unit 12 is larger, and has a smaller value as the amount of light is smaller. The light amount of the light emitted from the light emitting unit 12 is the sum of the light amounts of the light emitted from the plurality of light sources 17. The amount of light emitted from the light source 17 becomes larger as the current supplied to the light source 17 is larger, and becomes smaller as the current is smaller. Therefore, the illuminance of the illuminance reference plane F changes based on the magnitude of the current supplied to the light source 17. Control of the light emission state by the second light emission state control unit 65 includes control of the magnitude of the current supplied to the light source 17. The storage unit 63 stores correlation data indicating the relationship between the magnitude of the current supplied to the light source 17 and the illuminance of the illuminance reference plane F corresponding to the magnitude of the current. The correlation data can be obtained in advance by experiment or simulation. When changing the size of the illuminance of the illuminance reference plane F, the second light emission state control unit 65 sets a target value of current corresponding to the changed illuminance, and supplies it to the light source 17 based on the set target value. Control the magnitude of the current.

The second light emission state control unit 65 may control the illuminance of the illuminance reference plane F, that is, the magnitude of the current supplied to the light source 17 based on, for example, a detection signal of the rotation sensor 53. When the worker rotates the dial 51 of the dial mechanism 50, the rotation sensor 53 detects the amount of rotation of the dial 51. The rotation sensor 53 outputs a detection signal to the control device 60. The second light emission state control unit 65 controls the magnitude of the current supplied to the light source 17 based on the detection signal of the rotation sensor 53 input to the input unit 61.

Further, the second light emission state control unit 65 may control the magnitude of the current supplied to the light source 17 based on, for example, the remaining power of the power tool battery 80 mounted on the battery mounting unit 70. The power tool battery 80 outputs a remaining amount signal indicating the remaining power. The second light emission state control unit 65 detects the remaining power of the power tool battery 80 based on the remaining power signal output from the power tool battery 80. If the power remaining amount of the power tool battery 80 falls below the remaining amount threshold, the second light emission state control unit 65 reduces the magnitude of the current supplied to the light source 17.

The storage unit 63 stores the illuminance controlled by the second light emission state control unit 65, that is, the target value of the current. The storage unit 63 includes an illuminance data storage unit 66 that stores a target value of the current corresponding to the illuminance of the illuminance reference plane F. The second light emission state control unit 65 causes the storage unit 63 to store the set target value of the current at a constant cycle. For example, when the light emitting unit 12 is turned off and then turned on again, the second light emission state control unit 65 supplies the light source 17 based on the target value of the current stored in the storage unit 63 at the last cycle of turning off. Control the magnitude of the

<Usage mode>
Next, the usage aspect of the light projector 100A which concerns on this embodiment is demonstrated. The projector 100A is used, for example, at a work site where a worker works using a power tool. The light projector 100A may be placed on the ground or may be placed on the installation table. When the light projector 100A is of a stationary type directly mounted on the ground or on the installation table, the arm 20 is disposed below the main body member 10. The main body member 10 is rotated about the rotation axis AX, and the positional relationship between the arm 20 and the main body member 10 is adjusted, whereby the emission direction of light emitted from the light emitting unit 12 is adjusted.

FIG. 11 is a view showing a use mode of the light projector 100A according to the present embodiment. As shown in FIG. 11, the light projector 100A may be supported by a dedicated tripod stand 90. By connecting the connection portion 23 e provided on the annular portion 23 of the arm 20 and the tripod stand 90, the light projector 100 A is supported by the tripod stand 90.

The projector 100A may be supported by a tripod stand used for other applications, such as a tripod stand for attaching a laser marker, or a tripod stand for attaching a camera. Further, by attaching an attachment to which the plurality of projectors 100A can be connected to the tripod stand 90, one tripod stand 90 can support the plurality of projectors 100A.

When the switch 41 of the switch mechanism 40 is operated in switching the lighting state, the blinking state, and the extinguishing state of the light emitting unit 12, the displacement sensor 43 controls the detection signal based on the displacement amount of the switch 41. Output to The control device 60 switches the lighting state, the blinking state, and the extinguishing state of the light emitting unit 12 based on the detection signal of the displacement sensor 43.

When controlling the illuminance of light emitted from the light emitting unit 12, when the dial 51 of the dial mechanism 50 is operated, the rotation sensor 53 outputs a detection signal to the control device 60 based on the amount of rotation of the dial 51. . The control device 60 changes the magnitude of the current supplied to the light source 17 based on the detection signal of the rotation sensor 53.

In this manner, the worker may operate the operation device HD disposed on the first side surface 15R which is one of the first side surface 15R and the second side surface 15L of the main body member 10, so Even in the state of holding the power tool, the operating device HD can be easily operated with the other hand. Further, since the switch 41 and the dial 51 are disposed on the side portion of the main body member 10, the operator can easily operate the switch 41 and the dial 51 even if the light projector 100A is disposed at a high place.

Further, for example, when the arm 20 is rotated with respect to the main body member 10, when the fixing member 32e is rotated in one direction in which the fixing is released, the fixing between the cam 22c and the cam 32c is released and the arm 20 is easily made. Can be turned. Further, after the arm 20 is rotated and alignment is performed between the cylindrical portion 22a and the cylindrical portion 32b, when the fixing member 32e is rotated in the other direction, the cylindrical portion 22a is fixed. Thus, when rotating the arm 20, the operator operates the fixing mechanism 35 disposed on the second side surface 15L which is the other side surface of the first side surface 15R and the second side surface 15L of the main body member 10. As long as the power tool is held by one hand, the fixing mechanism 35 can be easily operated by the other hand.

<Effect>
As described above, the light projector 100A according to the present embodiment is connected to the main body member 10 having the light emitting portion 12 and the connection mechanism 30 provided on the side surface of the main body member 10, and can rotate about the rotation axis AX. The arm 20 and an operation device HD disposed in the connection mechanism 30 and operated to adjust the light emission state of the light emitting unit 12 are provided.

According to the present embodiment, since the operating device HD operated to adjust the light emitting state of the light emitting unit 12 is disposed on the rotation axis AX of the connecting mechanism 30, the operating device HD interferes with the arm 20. There is no Further, since the controller device HD is disposed to the side of the main body member 10, even when the main body member 10 is disposed at a high position, the operation for adjusting the light emission state can be smoothly performed.

In the present embodiment, the connection mechanism 30 includes a first connection mechanism 31 provided on the first side surface 15R of the main body member 10, and a second connection mechanism 32 provided on the second side surface 15L of the main body member 10. . The controller HD is disposed in the first connection mechanism 31, and the second connection mechanism 32 includes a fixing mechanism 35 that fixes the arm 20 to the main body member 10. Thereby, when operating the fixing member 32e of the fixing mechanism 35, it is possible to suppress that the operating device HD is operated. In addition, when operating the operation device HD, it can be suppressed that the fixing member 32e is operated.

In the present embodiment, the fixing mechanism 35 includes a cam 32 c that regulates the rotation of the arm 20. Since rotation of the arm 20 is restricted by the cam 32c, even if the first connection mechanism 31 is not provided with a fixing mechanism, the rotation of the arm 20 can be restricted.

In the present embodiment, the operation device HD is a switch 41 at least a part of which is disposed on the rotation axis AX and displaceable in a direction parallel to the rotation axis AX, and disposed around the switch 41 and rotated about the rotation axis AX. And possible dials 51. Since the switch 41 and the dial 51 having different operation methods are provided as the operation device HD, the operator can easily operate the operation device HD.

In the present embodiment, the light emission state control unit 62 that controls the light emission state based on the operation amount of the operation device HD is provided. The operation amount of the operation device HD includes the displacement amount of the switch 41 and the rotation amount of the dial 51. Thereby, the operation by the switch 41 and the dial 51 is appropriately reflected in the light emission state.

In the present embodiment, a displacement sensor 43 for detecting the displacement amount of the switch 41 is provided. The light emission state control unit 62 includes a first light emission state control unit 64 that controls the light emission state based on the detection signal of the displacement sensor 43. Thereby, the operation by the switch 41 is appropriately reflected in the light emission state.

In the present embodiment, the control of the light emission state by the first light emission state control unit 64 is control for switching the light emission unit 12 (light source 17) between the on state, the on light state, the on light state, and the off state. At least one of controls for switching color light is included. Thus, the light emitting unit 12 can emit light in various light emitting states.

In the present embodiment, a rotation sensor 53 for detecting the amount of rotation of the dial 51 is provided. The light emission state control unit 62 includes a second light emission state control unit 65 that controls the light emission state based on the detection signal of the rotation sensor 53. Thereby, the operation by the dial 51 is appropriately reflected in the change of the illuminance.

In the present embodiment, the control of the light emission state by the second light emission state control unit 65 includes the control of the illuminance when the light emitted from the light emitting unit 12 (light source 17) is irradiated to the predetermined illuminance reference plane F. Thus, the light emitting unit 12 can emit light with various light amounts.

In the present embodiment, a storage unit 63 that stores the illuminance controlled by the second light emission state control unit 65 is provided. The second light emission state control unit 65 causes the light emitting unit 12 (light source 17) to emit light at the illuminance stored in the storage unit 63 when the light emitting unit 12 (light source 17) is turned off. Control. When the light emitting unit 12 is turned on again, the light is irradiated with the illuminance emitted by the light emitting unit 12 immediately before, so that it is possible to save the trouble of re-adjusting the illuminance of the light emitting unit 12.

In the present embodiment, a battery mounting portion 70 to which the power tool battery 80 is mounted is provided on the main body member 10. The light emission state control unit 62 controls the light emission state based on the remaining amount of power of the battery mounted in the battery mounting unit 70. Thereby, the remaining amount of the power tool battery 80 is efficiently notified to the outside.

In the present embodiment, the battery mounted to the battery mounting portion 70 is a power tool battery 80 mountable to the power tool. Thus, at the work site where the power tool is used, the power tool battery 80 used for the power tool can be applied to the light projector 100A.

In the present embodiment, the battery mounting unit 70 can mount at least two power tool batteries 80. Thereby, sufficient power for emitting light from the light emitting unit 12 can be secured.

In the present embodiment, the main body member 10 is a heat radiating member 19 for fixing the light emitting unit 12, and side surfaces (upper surface 14a, lower surface 14b, right surface 14c, left surface) disposed around the light emitting unit 12 and surrounding the light emitting unit 12. And a front cover 14 having an opening 14K on at least two side surfaces. Thus, even if foreign matter intrudes into the inside of the front cover 14 from the opening 14K provided on one side of the front cover 14, the foreign matter is discharged from the opening 14K provided on the other side.

In the present embodiment, the main body member 10 includes a first wall portion 15S forming a first space K1 for housing the heat dissipation member 19 with the front cover 14, and a second wall portion 15T in which the battery mounting portion 70 is disposed. And the battery cover 16 which forms the 2nd space K2 which accommodates the battery 80 for electric tools between 2nd wall part 15T. The battery cover 16 can restrict the entry of foreign matter into the second space K2.

Second Embodiment
The second embodiment will be described. In the following description, constituent elements identical or equivalent to those of the above-described embodiment are denoted by the same reference numerals, and the description thereof is simplified or omitted.

FIG. 12 is a perspective view showing an example of a light projector 100B according to this embodiment. Similar to the above-described embodiment, the light projector 100B includes the body member 10, the arm 20, the connection mechanism 30, and the operation device HD. The projector 100B according to the present embodiment differs from the above-described embodiment in that it has a hook 131 in place of the handle 13 described in the above-described embodiment. The hook 131 is connected to the main body member 10 and hung on the rod-like member 91.

FIG. 13 is a view showing a use mode of the light projector 100B according to the present embodiment. As shown in FIG. 13, the arm 20 of the light projector 100 B can be pivoted about a pivot shaft connecting the connecting mechanisms 30. In a state in which the hook 131 is hooked on the rod-like member 91, the arm 20 rotates about the rotation axis AX and is connected to the tip of the hook 131. The arm 20 is connected to the tip of the hook 131 so as to surround the rod-like member 91. According to the present embodiment, the falling off of the hook 131 is suppressed.

Third Embodiment
A third embodiment will be described. In the following description, constituent elements identical or equivalent to those of the above-described embodiment are denoted by the same reference numerals, and the description thereof is simplified or omitted.

FIG. 14 is a perspective view showing an example of a light projector 100C according to the present embodiment. Similar to the above-described embodiment liquid, the light projector 100C includes the body member 10, the arm 20, the connection mechanism 30, and the operation device HD. The projector 100C according to the present embodiment differs from the above-described embodiment in that it has a hook 132 in place of the handle 13 described in the above-described embodiment. The hook 132 can be suspended from the rod-like member 91. The hooks 132 are disposed one on each side of the body member 10. The hook 132 is supported by the bearing portion 133 so as to be pivotable about a pivot shaft parallel to the front-rear direction. The hook 132 disposed on the right side of the main body member 10 is bent rearward. The hook 132 disposed on the left side of the main body member 10 is bent forward.

FIG. 15 is a view showing a use mode of the projector 100C according to the present embodiment. As shown in FIG. 15, after the left and right hooks 132 are removed from the rod-like member 91, the light projector 100 B can accommodate the hooks 132 by being rotated below the bearing portion 133. According to this embodiment, the detachment of the hook 132 is suppressed, and the hook 132 is efficiently accommodated.

Fourth Embodiment
A fourth embodiment will be described. In the following description, constituent elements identical or equivalent to those of the above-described embodiment are denoted by the same reference numerals, and the description thereof is simplified or omitted.

FIG. 16 is a perspective view showing an example of a light projector 100D according to this embodiment. FIG. 17 is a plan view showing an example of a light projector 100D according to this embodiment. As shown in FIGS. 16 and 17, the light projector 100D is connected to the main body member 10, the handle 13 connected to the main body member 10, and the connecting mechanism 30 provided on the side surface of the main body member 10, and has the rotation axis AX centered. And a control device 60 disposed on the connection mechanism 30 and operated to adjust the light emission state of the light emitting unit 12, and a control device 60.

<Body member>
The main body member 10 includes a housing 11, a light emitting unit 12 supported by the housing 11, and a heat radiating member 19 supporting the light emitting unit 12. The housing 11 has a front cover 14, a back cover 15, and a battery cover 16. The front cover 14 has a plurality of side surfaces surrounding the light emitting unit 12 and the heat dissipation member 19. The plurality of side surfaces include an upper surface 14 a, a lower surface 14 b, a right surface 14 c, and a left surface 14 d of the front cover 14.

A vent 201 (first vent) is provided on each of the upper surface 14 a, the lower surface 14 b, the right surface 14 c, and the left surface 14 d of the front cover 14. At least a portion of the heat dissipation member 19 is exposed from the vent 201. The vent 201 connects the internal space of the front cover 14 and the external space.

In the following description, the vent 201 provided on each of the upper surface 14a and the lower surface 14b is referred to as a vertical vent 201A, and the vent 201 provided on each of the right surface 14c and the left surface 14d is referred to as a horizontal vent 201B, It is called.

A plurality of vertical vents 201A are provided in the left-right direction. One vertical vent 201A is long in the front-rear direction. The longitudinal vent 201A provided on the lower surface 14b is the same as the longitudinal vent 201A provided on the upper surface 14a.

A plurality of lateral vents 201B are provided in the vertical direction. One lateral vent 201B is long in the front-rear direction. The lateral vent 201B provided on the left side 14d is the same as the lateral vent 201B provided on the right side 14c.

The light emitting unit 12 includes a plurality of light sources 17 and a control substrate 18 supporting the plurality of light sources 17. The control board 18 has a drive circuit for driving the light source 17 and a wire connected to the drive circuit. The light source 17 is disposed on the front surface of the control board 18. The light source 17 is supported on the front surface of the control substrate 18 and emits light in front of the control substrate 18.

The heat dissipating member 19 is a heat sink that emits the heat generated from the light source 17. The heat dissipating member 19 is formed of a material having a thermal conductivity higher than that of the control substrate 18. The heat dissipating member 19 is disposed behind the control board 18. The heat dissipating member 19 is disposed in the rear of the control board 18 so as to be in contact with the rear surface of the control board 18.

The control substrate 18 functions as a support member for supporting the light source 17. The heat dissipating member 19 functions as a support member for supporting the light source 17 via the control substrate 18. In the present embodiment, the support member for supporting the light source 17 includes the control substrate 18 and the heat dissipation member 19. Similar to the above-described embodiment, the housing 11 of the main body member 10 supports a support member that supports the light source 17.

<Handle>
The handle 13 is attached to the body member 10. Similar to the above-described embodiment, the handle 13 has a pair of base portions 13a connected to the back cover 15 via the shaft portion 13b, and a grip portion 13c connecting the pair of base portions 13a. The handle 13 is pivotable about the shaft 13b. The handle 13 can move between the housing position P1 and the standing position P2 (see FIG. 21 and the like) by pivoting around the shaft portion 13b.

In the state where the handle 13 is disposed at the accommodation position P1, the handle 13 regulates the movement of the battery cover 16 to the rear (opening direction). In the state where the handle 13 is disposed at the standing position P2, the operator can grip the handle 13 smoothly.

<Arm>
The arm 20 is connected to a connection mechanism 30 provided on the side surface of the main body member 10, and is rotatable about the rotation axis AX. The arm 20 is connected to the first arm 210 connected to the first side surface 15R of the main body member 10 via the first connection mechanism 31 and to the second side surface 15L of the main body member 10 via the second connection mechanism 32. A second arm 220 and a rod 230 connecting the first arm 210 and the second arm 220 are included.

The first arm 210 is disposed around the first connection mechanism 31, and has a base portion 240 facing the first side surface 15R, an annular portion 242 connected to the base portion 240 and having a ground portion 250, and an inner side of the annular portion 242. And a plate portion 244 disposed at the The base portion 240, the annular portion 242, and the plate portion 244 are integrated.

The base portion 240 is connected to the first side surface 15R of the back cover 15 via the first connection mechanism 31. The base portion 240 is plate-shaped and faces at least a part of the first side surface 15R. The base portion 240 is disposed around the first connection mechanism 31.

The annular portion 242 is a first node portion 242A extending forward and downward along the first side surface 15R from the front of the base portion 240, and a first node portion extending rearward and downward from the rear portion of the base portion 240 along the first side surface 15R. It has a second joint portion 242B and a third joint portion 242C connecting the lower end portion of the first joint portion 242A and the lower end portion of the second joint portion 242B.

The ground portion 250 is provided on the lower surface of the third node portion 242C. The grounding portion 250 includes, for example, a pad member made of rubber, and two grounding portions are provided in the front-rear direction on the lower surface of the third node portion 242C.

The plate portion 244 is disposed inside the annular portion 242. The plate portion 244 of the first arm 210 has an outer surface facing to the right and an inner surface facing to the left. A plurality of ribs are provided on the inner surface of the plate portion 244. In addition, a connection portion 260 to which the rod 230 is connected is provided on the inner surface of the plate portion 244.

Since the second arm 220 has the same structure as the first arm 210, the description of the second arm 220 is omitted.

The rod 230 connects the first arm 210 and the second arm 220. The central axis of the rod 230 and the rotation axis AX are substantially parallel. The right end of the rod 230 is connected to the connecting portion 260 of the first arm 210. The left end of the rod 230 is connected to the connecting portion 260 of the second arm 220. In the present embodiment, two rods 230 are provided. The first arm 210 and the second arm 220 are connected via a rod 230. Therefore, the first arm 210 and the second arm 220 can rotate together about the rotation axis AX.

<First Coupling Mechanism and Operating Device>
Similar to the above-described embodiment, the light projector 100D includes the first connecting mechanism 31 and the operating device HD. Since the first connecting mechanism 31 and the operating device HD of the light projector 100D have the same structure as the first connecting mechanism 31 and the operating device HD of the light projector 100A described above, the description of the first connecting mechanism 31 and the operating device HD of the light projector 100D Is omitted.

<Second connection mechanism>
FIG. 18 is a perspective view showing a second connection mechanism 32 according to the present embodiment. As shown in FIG. 18, the base 240 of the second arm 220 is connected to the second connection mechanism 32. The base portion 240 has a cam 22c. The cam 22 c regulates the rotation of the arm 20. The cam 22 c is provided on the right end surface 22 d of the base portion 240. FIG. 18 also shows a view of the base portion 240 as viewed from the end face 22 d side. The cam 22c has a plurality of protrusions disposed around the rotation axis AX at the tip end surface 22d.

The cam 32 c regulates the rotation of the arm 20. The cam 32c is provided on the tip surface 32f of the cylindrical portion 32b. The cam 32c has a plurality of protrusions disposed around the rotation axis AX at the tip end face 32f.

The screw portion 32d protrudes leftward from the tip end surface 32f of the cylindrical portion 32b. A screw thread is formed at the left end of the screw portion 32d.

The fixing member 32e has a screw hole 32g. The screw portion 32d is inserted into the screw hole 32g and coupled with the screw hole 32g. The fixing member 32 e is coupled to the screw portion 32 d from the left side of the base portion 240. The left end of the screw portion 32d is inserted into the screw hole 32g of the fixing member 32e, and the fixing member 32e is rotated in one direction about the rotation axis AX, whereby the base portion 240 and the cylindrical portion 32b are fixed. . Further, the fixing member 32e is rotated in the other direction about the rotation axis AX, so that the fixing between the base portion 240 and the cylindrical portion 32b is released.

In a state in which the base portion 240 and the cylindrical portion 32 b are fixed, the cam 22 c of the base portion 240 and the cam 32 c of the second connection mechanism 32 are coupled. Thereby, the rotation of the base portion 240 about the rotation axis AX is restricted.

In the state where the fixation between the base portion 240 and the cylindrical portion 32b is released, the coupling between the cam 22c of the base portion 240 and the cam 32c of the second connection mechanism 32 is released. Thus, the base portion 240 can rotate around the rotation axis AX. Further, the position of the arm 20 in the rotation direction about the rotation axis AX can be adjusted.

<Heat dissipation member>
FIG. 19 is a perspective view showing the heat dissipating member 19 according to the present embodiment. FIG. 19 shows the heat dissipation member 19 housed in the front cover 14 as viewed from the rear. As shown in FIG. 19, the heat dissipation member 19 has a support plate 19a and fins 19f. The support plate 19 a supports the control board 18. The control substrate 18 contacts the support plate 19a.

The fins 19f are supported by the rear surface of the support plate 19a and project rearward from the support plate 19a. The fins 19 f have a plate shape extending in the vertical direction, and a plurality of fins 19 f are provided at intervals in the left-right direction.

In the present embodiment, the fins 19f are formed by bending two places of a metal plate. In the example shown in FIG. 19, 30 fins 19f are provided. By bending the 15 metal plates, 30 fins 19 f are formed.

Each of the plurality of fins 19 f has a through hole 19 h penetrating in the left-right direction. In one fin 19f, a plurality of through holes 19h are provided at intervals in the vertical direction. In the example shown in FIG. 19, seven through holes 19 h are provided.

The front cover 14 is disposed so as to surround the light emitting unit 12 and the heat dissipation member 19. The vertical vents 201A are provided on one side (upper side) and the other side (lower side) of the fins 19f in the vertical direction. The lateral vents 201B are provided on one side (right side) and the other side (left side) of the fins 19f in the left-right direction.

<Battery mounting part>
Each of FIG. 20 and FIG. 21 is a perspective view showing a state in which the light projector 100D according to the present embodiment is viewed from the rear, and shows a state in which the battery cover 16 is rotated backward (opening direction). The main body member 10 has a battery mounting portion 70 to which the power tool battery 80 is mounted. The battery mounting portion 70 is covered by a battery cover 16. When mounting the power tool battery 80 on the battery mounting portion 70 or removing the power tool battery 80 from the battery mounting portion 70, the battery cover 16 is pivoted rearward. FIG. 20 shows a state in which the power tool battery 80 is removed from the battery mounting portion 70. FIG. 21 shows a state in which the power tool battery 80 is mounted on the battery mounting portion 70. As shown in FIG.

When the battery cover 16 is rotated rearward, the handle 13 is disposed at the standing position P2. After the handle 13 is disposed at the upright position P2, the latch 16a is removed, and the battery cover 16 is pivoted rearward, whereby the battery mounting portion 70 is exposed as shown in FIG. Further, the battery mounting portion 70 is covered with the battery cover 16 by the battery cover 16 being pivoted forward (in the closing direction) and the latch 16 a being disposed on the step portion 15 a.

The back cover 15 has a second wall 15T. The battery mounting unit 70 is disposed on the second wall 15T. Two battery mounting portions 70 are provided in the second wall portion 15T. The battery mounting portion 70 has a guide portion 71 for guiding the power tool battery 80. The power tool battery 80 is mounted on the battery mounting portion 70 while being guided by the guide portion 71. Each of the light emitting unit 12 including the light source 17, the fan 200 described later, and the control device 60 is driven based on the power supplied from the power tool battery 80.

<Power supply wiring>
FIG. 22 is a perspective view showing a light projector 100D according to this embodiment as viewed from the rear, and shows a state in which the connection portion cover 15g is open. As shown in FIG. 22, a connector connection portion 15 p is provided on the rear surface 15 B of the back cover 15. Similar to the above-described embodiment, the connector connection portion 15p is connected to the connector 15t of the power supply wiring 15r. The connector cover 15g can cover the connector connector 15p.

<Fan>
FIG.23 and FIG.24 is sectional drawing which shows the projector 100D which concerns on this embodiment. FIG. 25 is a perspective view showing a light projector 100D according to the present embodiment. FIG. 23 shows a cross section parallel to a first predetermined plane including a longitudinal axis orthogonal to the rear surface of the support plate 19a and an upper and lower axis parallel to the rear surface of the support plate 19a. FIG. 24 shows a cross section parallel to a second predetermined plane including a longitudinal axis orthogonal to the rear surface of the support plate 19a and a horizontal axis parallel to the rear surface of the support plate 19a. FIG. 25 shows a state in which a part of the light projector 100D is broken.

The light projector 100D includes a fan 200 that generates an air flow on the surface of the heat dissipation member 19 to cool the light source 17. The fan 200 is disposed in the rear of the heat dissipation member 19 at a position facing the heat dissipation member 19.

The housing 11 has an internal space in which the light emitting unit 12 including the light source 17 and the control board 18, the heat radiating member 19, the fan 200, and the power tool battery 80 are accommodated. The internal space of the housing 11 is divided into a first internal space SP1 in which the light emitting unit 12 and the heat dissipation member 19 are accommodated, and a second internal space SP2 in which the fan 200 is disposed. The first inner space SP1 and the second inner space SP2 are divided by the first wall 15S of the back cover 15.

The first inner space SP1 is defined by the front cover 14 and the first wall 15S of the back cover 15. The second inner space SP2 is defined by the first wall 15S and the second wall 15T of the back cover 15.

The first wall portion 15S has an opening 203 connecting the first inner space SP1 and the second inner space SP2. The fan 200 faces the heat dissipation member 19 through the opening 203.

The vent 201 is provided to connect the first internal space SP1 and the external space of the housing 11. Further, the housing 11 has a vent 202 (second vent) connecting the second inner space SP2 and the external space of the housing 11.

The vent 202 is provided in the back cover 15. The vent 202 is provided on the left of the fan 200. A plurality of vents 202 are provided in the vertical direction. One vent 202 is long in the front-rear direction. The air vent 202 may be provided to the right of the fan 200, may be provided above the fan 200, or may be provided below the fan 200.

The projector 100D has a temperature sensor 204 that detects the temperature of the control board 18. The detection signal of the temperature sensor 204 is output to the control device 60. The detection signal of the temperature sensor 204 indicates the detected value of the temperature of the control board 18 detected by the temperature sensor 204.

<Control device>
FIG. 26 is a functional block diagram showing a control device 60 according to the present embodiment. The control device 60 includes an input unit 61, a light emission state control unit 62, a storage unit 63, and a fan control unit 67.

The input unit 61 acquires an input signal. The input signal acquired by the input unit 61 includes a detection signal of the displacement sensor 43, a detection signal of the rotation sensor 53, a remaining amount signal of the power tool battery 80, and a detection signal of the temperature sensor 204.

The light emission state control unit 62 controls the light emission state of the light source 17 based on the operation amount of the operation device HD.

The first light emission state control unit 64 controls the light emission state of the light source 17 based on the detection signal of the displacement sensor 43 that has detected the operation amount (displacement amount) of the switch 41. The control of the light emission state by the first light emission state control unit 64 includes control to switch the light source 17 between the light on state, the blink state, and the light off state.

The second light emission state control unit 65 controls the light emission state of the light source 17 based on the detection signal of the rotation sensor 53 that detects the operation amount (rotation amount) of the dial 51. Control of the light emission state by the second light emission state control unit 65 includes control of the illuminance of light emitted from the light source 17.

The fan control unit 67 outputs a control signal for controlling the fan 200. Control of the fan 200 by the fan control unit 67 includes control of switching the fan 200 between the drive state and the stop state. Further, control of the fan 200 by the fan control unit 67 includes control of the number of rotations of the fan 200. The fan 200 has a fan motor and blades rotated by the drive of the fan motor. The fan control unit 67 outputs a control signal to the fan motor to control the fan 200.

The fan control unit 67 controls the driving state of the fan 200 based on the detection signal of the temperature sensor 204. The storage unit 63 includes a temperature threshold storage unit 68 that stores a temperature threshold related to the temperature of the control substrate 18. The temperature threshold is set in advance and stored in the temperature threshold storage unit 68. The fan control unit 67 compares the temperature of the control board 18 detected by the temperature sensor 204 with the temperature threshold, and drives the fan 200 when determining that the temperature of the control board 18 is equal to or higher than the temperature threshold. When it is determined that the temperature of the control board 18 is less than the temperature threshold, the fan 200 is stopped.

The fan control unit 67 may control the number of rotations of the fan 200 based on the temperature of the control board 18 detected by the temperature sensor 204. The fan control unit 67 may increase the rotational speed of the fan 200 as the temperature of the control substrate 18 increases, and may decrease the rotational speed of the fan 200 as the temperature of the control substrate 18 decreases.

The fan control unit 67 may control the drive state of the fan 200 based on the operation amount of the controller device HD. For example, the fan control unit 67 drives the fan 200 when it is determined that the light source 17 is in the lighting state based on the detection signal of the displacement sensor 43 that detects the operation amount (displacement amount) of the switch 41. The fan 200 may be stopped when it is determined that the state 17 is off. Further, based on the detection signal of the rotation sensor 53 that detects the operation amount (rotation amount) of the dial 51, the fan control unit 67 increases the number of rotations of the fan 200 as the illuminance of light emitted from the light source 17 increases. As the illuminance of the light emitted from the light source 17 decreases, the rotational speed of the fan 200 may be reduced.

The fan control unit 67 may control the driving state of the fan 200 based on the remaining amount signal output from the power tool battery 80. For example, the fan control unit 67 drives the fan 200 when it is determined that the remaining power of the power tool battery 80 is equal to or higher than the remaining threshold while the temperature of the control board 18 is equal to or higher than the temperature threshold. Even if the temperature of the control board 18 is equal to or higher than the temperature threshold, the fan 200 may be stopped when it is determined that the remaining power of the power tool battery 80 is less than the remaining threshold.

Further, in a state where the temperature of the control board 18 is equal to or higher than the temperature threshold, the fan control unit 67 increases the number of rotations of the fan 200 as the remaining power of the power tool battery 80 increases. As the remaining amount is smaller, the rotation speed of the fan 200 may be lowered.

<Function>
Next, the operation of the fan 200 according to the present embodiment will be described. FIG. 27 is a view showing an operation of the fan 200 according to the present embodiment, and is a cross-sectional view schematically showing a part of the light projector 100D. FIG. 27A shows a cross section parallel to a second predetermined plane including a longitudinal axis orthogonal to the rear surface of the support plate 19a and a left and right axis parallel to the rear surface of the support plate 19a. FIG. 27B shows a cross section parallel to a first predetermined plane including a longitudinal axis orthogonal to the rear surface of the support plate 19a and an upper and lower axis parallel to the rear surface of the support plate 19a.

When the light source 17 is driven, the light source 17 generates heat. As the light source 17 generates heat, the temperature of the control board 18 rises. The temperature of the control board 18 is detected by a temperature sensor 204. The temperature sensor 204 outputs a detection signal indicating the temperature of the control board 18 to the control device 60.

The input unit 61 acquires a detection signal of the temperature sensor 204. The fan control unit 67 compares the temperature of the control substrate 18 detected by the temperature sensor 204 with the temperature threshold stored in the temperature threshold storage unit 68 and determines that the temperature of the control substrate 18 is equal to or higher than the temperature threshold When it is determined, driving of the fan 200 is started.

In the present embodiment, the fan 200 supplies a gas to the heat dissipation member 19. When the fan 200 is driven, the gas in the external space of the housing 11 flows into the second internal space SP2 through the vent 202. The fan 200 supplies a gas to the heat dissipation member 19 through the opening 203 of the first wall 15S.

By driving the fan 200, at least part of the gas in the second internal space SP2 flows into the first internal space SP1 through the opening 203. By driving the fan 200, an air flow is generated on at least a part of the surface of the heat dissipation member 19. The gas in contact with the surface of the heat dissipating member 19 removes heat from the heat dissipating member 19.

As shown in FIG. 27A, a plurality of fins 19f are disposed in the left-right direction. In the present embodiment, through holes 19 h are provided in each of the plurality of fins 19 f. Therefore, the gas supplied to the heat dissipation member 19 by the fan 200 can flow smoothly in the left-right direction via the through holes 19 h.

A lateral vent 201B is provided on one side (right side) and the other side (left side) of the fin 19f in the left-right direction. The gas that has flowed in the left-right direction through the through hole 19 h can flow out to the external space of the housing 11 through the lateral vent 201 B.

Further, as shown in FIG. 27B, the fins 19f have a plate shape extending in the vertical direction. Therefore, the gas supplied to the heat dissipation member 19 by the fan 200 can flow smoothly in the vertical direction along the surface of the fin 19 f.

Vertical vents 201A are provided on one side (upper side) and the other side (lower side) of the fins 19f in the vertical direction. The gas that has flowed in the vertical direction along the surface of the fin 19 f can flow out to the external space of the housing 11 via the vertical vent 201 A.

<Effect>
As described above, according to the present embodiment, the fan 200 can generate an air flow on the surface of the heat dissipation member 19 supporting the light source 17. The gas flowing while contacting the surface of the heat dissipation member 19 removes heat from the heat dissipation member 19. Therefore, the excessive temperature rise of the light source 17 is suppressed.

The light source 17 is supported on the front surface of the control substrate 18 and emits light in front of the control substrate 18. The fan 200 is disposed in the rear of the heat dissipation member 19 at a position facing the heat dissipation member 19. Since the fan 200 is not disposed in the light path of the light emitted from the light source 17, the light projector 100D can smoothly illuminate the illumination target. Further, since the fan 200 is disposed at a position facing the heat dissipation member 19, the gas can be sufficiently supplied to the heat dissipation member 19.

The internal space of the housing 11 is divided into a first internal space SP1 and a second internal space SP2 by the first wall portion 15S. The light source 17, the control substrate 18, and the heat dissipation member 19 are disposed in the first internal space SP1, and the fan 200 is disposed in the second internal space SP2. The first internal space SP1 and the second internal space SP2 are connected only by the opening 203. By dividing the first internal space SP1 and the second internal space SP2, for example, the foreign matter that has entered the second internal space SP2 is suppressed from entering the first internal space SP1. Further, the first internal space SP1 is sealed by the seal member, so that the entry of foreign matter into the first internal space SP1 is effectively suppressed.

The second internal space SP2 in which the fan 200 is disposed is connected to the external space of the housing 11 via the vent 202. Thus, when the fan 200 is driven, the gas in the external space flows into the second internal space SP2 through the vent 202, so that the fan 200 can smoothly supply the gas to the heat dissipation member 19.

The first internal space SP 1 in which the light source 17, the control substrate 18, and the heat dissipation member 19 are disposed is connected to the external space of the housing 11 via the vent 201. As a result, the gas that has taken heat from the heat dissipation member 19 can flow out to the external space of the housing 11 through the vent 201. Since the gas heated by the contact with the heat dissipation member 19 is smoothly discharged to the external space of the housing 11 through the vent 201, the reduction of the cooling efficiency of the light source 17 is suppressed.

The fins 19 f have a plate shape extending in the vertical direction. Therefore, the gas supplied to the heat dissipation member 19 by the fan 200 can flow smoothly in the vertical direction along the surface of the fin 19 f. Further, vertical vents 201A are provided on the upper side and the lower side of the fins 19f, respectively. The gas that has flowed in the vertical direction along the surface of the fin 19 f can smoothly flow out to the external space of the housing 11 through the vertical vent 201 A.

In addition, the fin 19 f has a through hole 19 h penetrating in the left-right direction. Therefore, the gas supplied to the heat dissipation member 19 by the fan 200 can flow smoothly in the left-right direction via the through holes 19 h. In addition, lateral vents 201B are provided on the right and left sides of the fins 19f, respectively. The gas that has flowed in the left-right direction through the through hole 19 h can smoothly flow out to the external space of the housing 11 through the lateral vent 201 B.

In the present embodiment, the temperature of the control board 18 is detected by the temperature sensor 204, and the driving state of the fan 200 is controlled based on the detection signal of the temperature sensor 204. In a situation where the temperature of the light source 17 is not excessively increased and it is not necessary to cool the light source 17, the power consumption of the fan 200 is suppressed by not driving the fan 200.

The driving state of the fan 200 may be controlled based on the amount of operation of the operating device HD that adjusts the light emitting state of the light source 17. Depending on the light emission state of the light source 17, the temperature of the light source 17 may not be excessively increased, and thus the light source 17 may not need to be cooled. In a situation where it is not necessary to cool the light source 17, the power consumption of the fan 200 is suppressed by not driving the fan 200.

Even in a situation where it is necessary to cool the light source 17, when the remaining power of the power tool battery 80 is small, the rotation speed of the fan 200 is lowered or the fan 200 is stopped. Power consumption can be reduced.

In the present embodiment, the fan 200 supplies gas to the heat dissipation member 19. The fan 200 may recover the gas from the heat dissipation member 19. That is, the fan 200 may suck in the gas around the heat dissipation member 19. Since the air flow is also generated on the surface of the heat dissipation member 19 by the fact that the fan 200 sucks the gas, the light source 17 can be cooled.

In the present embodiment, the heat dissipation member 19 may be omitted. Even when the heat dissipation member 19 is omitted, the light source 17 can be effectively cooled by the air flow generated on the surface of the control board 18 by the fan 200.

[Other embodiments]
In the above-mentioned embodiment, although the configuration in which the switch mechanism 40 and the dial mechanism 50 are disposed in the first connection mechanism 31 of the connection mechanism 30 is described as an example, the present invention is not limited thereto. For example, one of the switch mechanism 40 and the dial mechanism 50 may be disposed in the first connection mechanism 31 and the other may be disposed in the second connection mechanism 32.

DESCRIPTION OF SYMBOLS 10 ...

Body member

11, 11 ... Housing | casing 12, 12 ... Light emission part, 13 ... Handle, 13a ... Base, 13b ... Shaft part, 13c ... Holding part, 14 ... Front cover, 14a ... Upper surface, 14b ... Lower surface, 14c ... Right surface, 14d: left surface, 14K: opening, 14L: lens, 15: back cover, 15B: rear surface, 15L: second side, 15R: first side, 15S: first wall, 15T: second wall, 15a Step part, 15c: Insertion hole, 15d: Bearing, 15e: Wall part, 15f: Sealing member, 15g: Connection part cover, 15p: Connector connection part, 15r: Power supply wiring, 15t: Connector, 15u: screw member, 16 ... Battery cover, 16a ... latch, 17 ... light source, 18 ... control board, 19 ... heat dissipation member, 19a ... support plate, 19b ... fin, 19c ... fin, 19d ... fixing member insertion part, 19e ... insertion part, 9f: Fin, 19h: Through hole, 20: Arm, 21: First base, 22: Second base, 22a: Cylindrical portion, 22b: Rod portion, 22c: Cam, 22d: Tip surface, 22e: Through hole, 23 ... Annular part, 23a ... 1st node part, 23b ... 2nd node part, 23c ... 3rd node part, 23d ... Wire wound part, 23e ... Connection part, 24 ... Curved part, 25 ... Curved part, 26 ... Curved part , 27: curved portion, 30: connection mechanism, 31: first connection mechanism, 31a: flange portion, 31b: cylindrical portion, 32: second connection mechanism, 32a: flange portion, 32b: cylindrical portion, 32c: cam, 32d ... screw part 32e ... fixed member, 32f ... tip face, 32g ... screw hole, 35 ... fixed mechanism, 40 ... switch mechanism, 41 ... switch, 42 ... moving member, 43 ... displacement sensor, 50 ... dial mechanism, 51 ... Dial, 52 ... rotating member, 53 60: control device, 61: input unit, 62: light emission state control unit, 63: storage unit, 64: first light emission state control unit, 65: second light emission state control unit, 66: illuminance data storage unit, 67 Fan control unit 68 Temperature threshold storage unit 70 Battery mounting unit 71 Guide unit 80 Power tool battery 90 Tripod stand 91 Rod member

100A Light projector

100B Light projector 100C DESCRIPTION OF SYMBOLS ... floodlight, 100D ... floodlight, 131 ... hook, 132 ... hook, 133 ... bearing part, 200 ... fan, 201 ... vent (1st vent), 201A ... longitudinal vent (1st vent), 201B ... horizontal Vent 202, vent (second vent) 203, opening 204, temperature sensor 210, first arm 220, second arm 230, rod 240, base portion 242, annular Section 242A: first section section 242B: second section section 242C: third section section 244: plate section 250: ground section 260: connection section AX: rotation axis F: illuminance reference plane K1 ... 1st space, K2 ... 2nd space, P1 ... accommodation position, P2 ... standing position, HD ... operation device.

Claims

Light source,
A support member for supporting the light source;
A fan that generates an air flow on the surface of the support member to cool the light source;
Equipped with
The light source is supported on the front surface of the support member and emits light in front of the support member,
The fan is disposed at a position facing the support member at the rear of the support member.
Floodlight.
A housing having an internal space in which the light source, the support member, and the fan are accommodated;
A wall section that divides the internal space into a first internal space and a second internal space;
The light source and the support member are disposed in the first internal space,
The fan is disposed in the second internal space,
The housing has a first vent connecting the first internal space and the external space, and a second vent connecting the second internal space and the external space.
The wall has an opening connecting the first internal space and the second internal space,
The fan faces the support member through the opening.
The projector according to claim 1.
The support member includes a control substrate having a drive circuit for driving the light source and supporting the light source, and a heat dissipation member in contact with the control substrate.
The fan generates an air flow on the surface of the heat dissipation member.
The projector according to claim 2.
The light source is disposed in front of the control board.
The heat dissipating member is disposed in contact with the control substrate at the rear of the control substrate,
The fan is disposed at a position facing the heat dissipation member.
The light projector of Claim 3.
The heat dissipating member has a support plate in contact with the control substrate, and a fin supported on a rear surface of the support plate and projecting rearward from the support plate.
The fins are in the form of a plate extending in a first direction in a predetermined plane parallel to the rear surface of the support plate, and a plurality of fins are provided in a second direction in the predetermined plane orthogonal to the first direction.
Each of the plurality of fins has a through hole penetrating in the second direction;
The first vent is provided on one side and the other side of the fin in the first direction, and provided on the one side and the other side of the fin in the second direction,
The projector according to claim 4.
A temperature sensor that detects the temperature of the support member;
A fan control unit that controls a driving state of the fan based on a detection signal of the temperature sensor;
The projector according to any one of claims 1 to 5, comprising:
The fan control unit drives the fan when the temperature of the support member is equal to or higher than a temperature threshold, and stops the fan when the temperature of the support member is lower than the temperature threshold.
The projector according to claim 6.
An operating device operated to adjust the light emission state of the light source;
A light emission state control unit configured to control the light emission state based on an operation amount of the operation device;
A fan control unit that controls a driving state of the fan based on an operation amount of the operation device;
The projector according to any one of claims 1 to 5, comprising:
A main body member having a housing supporting the light source and the support member;
An arm that is coupled to a coupling mechanism provided on the side surface of the main body member and is rotatable about a rotation axis;
An operating device disposed in the coupling mechanism and operated to adjust the light emission state of the light source;
The projector according to any one of claims 1 to 5, comprising:
The connection mechanism includes a first connection mechanism provided on a first side surface of the main body member, and a second connection mechanism provided on a second side surface of the main body member.
The operating device is disposed in the first connection mechanism,
The second connection mechanism has a fixing mechanism for fixing the arm to the body member.
The projector according to claim 9.
The fixing mechanism includes a cam that restricts rotation of the arm.
The projector according to claim 10.
The operation device includes a switch at least a part of which is disposed on the rotation axis and displaceable in a direction parallel to the rotation axis, and a dial disposed around the switch and rotatable around the rotation axis. Including
The projector according to any one of claims 9 to 11.
A light emission state control unit configured to control the light emission state based on an operation amount of the operation device;
The operation amount of the operation device includes the displacement amount of the switch and the rotation amount of the dial,
The light projector of Claim 12.
A displacement sensor that detects displacement of the switch;
The light emission state control unit includes a first light emission state control unit that controls the light emission state based on a detection signal of the displacement sensor.
The light projector of Claim 13.
The control of the light emission state by the first light emission state control unit includes at least one of control for switching the light source between a light on state, a blink state and a light off state, and control for switching the color of light emitted from the light source. Including
The light projector of Claim 14.
A rotation sensor that detects the amount of rotation of the dial;
The light emission state control unit includes a second light emission state control unit that controls the light emission state based on a detection signal of the rotation sensor.
The light projector according to any one of claims 13 to 15.
The control of the light emission state by the second light emission state control unit includes the control of the illuminance when the light emitted from the light source is irradiated to a predetermined illuminance reference surface.
The light projector of Claim 16.
A storage unit configured to store the illuminance controlled by the second light emission state control unit;
The second light emission state control unit controls the light source such that light is emitted at the illuminance stored in the storage unit when the light source is turned off when the light source is turned off.
The light projector of Claim 17.
A battery mounting unit provided to the main body member and to which a battery is mounted;
The light emission state control unit controls the light emission state based on the remaining amount of power of the battery mounted on the battery mounting portion.
The light projector according to any one of claims 13 to 18.
It has a battery mounting unit to which a power tool battery is mounted,
The light source and the fan are driven based on the power supplied from the power tool battery.
The projector according to any one of claims 1 to 19.